Oil burner



March 4, 1930. L. D. HOULIS OIL BURNER Filed Nov. 14. 1927 2Sheets-Sheet 2 HUMP E' taken *on the line 66"o f Fig. '4,

Patented 'Mar. 4, 19 3 O a I p PATENT OFFICE l Lou IsnnoULIs,OEDALLAS,'TEXAS 1 e mmm i ncatioa ieaimi mber 14,1927. Serial No.233,282.

This inventio rfela fes to 1 new and useful improvementsin oil burners.a

' :"Qne "object of thei inventionnis to provide an oiliburner for usingkerosene andsimilar s fuel liquids'fin an "economical, efficient andsatisfactory -iinanner, whereby an even disftri'bution of heat and ajsteady flame, parties ularly'suitable for baking purposes, is had.

A particular objecft of the invention is to "'10 provide a trap wherebycondensed'liquids are automatically; drainedffrom the burner, thus ffreeing the various parts and connections A'fromsuch iiquids" which?would otherwise inl v terfere with the .operation andprevent propercombustion.

.A fu Itherobjectofthe'invention toiprovid'e a'n'e'conomfical ariaefli'cient retort or generator togetherwith Et iIIlXlIlg' chamber anda;:cleanout'openlng," j 1 construction designed to "carry out the[invention will be hereinafter. described, together withbtherffeaturesofthe invention, Theinventipnfwillbe more :readily understood from"aflreading ofthe following speci v fieaition' andi by reference to theaccompanydrawings; in which an example of the inventibnisjshown andwherein: 1 i

,Eigl; ;1;1s' a vviewjshowing aburner coni I structed in accordance withthe invention,

Fig. 7 is a perspective view of One of the burnerlsll g s', f

Fig; 8 isa verticalsectional viewrtaken on the line 8'8'-of Fig. 1,9andI Fig. 9 is a detail ofthe retort burner. i V In. the drawings thenumeral 10 designates elongatedburner'tube'which is parallel to andspacedirom an elongatedbur-ner tube 11,' both-preferably in Ithe sa inehorizontal --plane.'

.7 Fig. 3 is an enlarged "cross sectional view =35, a Fig; 4 is*asectional view of the ,retort or The tubes are tconnecte d at theirends by elbows 12 and couplings 13 so that they may be readily assembledor taken apart when necessary. At its center the'tube :10 has connectedthere in .a- T14, while a similar T 15 is connected in the burnertube 11 and these 'Ts are connected by ashort pipe or tube 16. The 15has a jrdepending collar 17 'at rightfangles to the'pipe connection 16for receiving a gas supply tube 18. I

Gasfsupplied to the -T 15 is distributed from each end of the T into thetube 11 and into the pipe 16 from which it is discharged intolthe' T 14and escapes from each end of I thelaitter into the tubel'O, Gas may alsopass fromone burner tube to the other through the elbows 12 andcouplings13.. 1

" llhavefound that very satisfactory results can be obtained byproviding the burner v tubes-10 and 11 with transverse kerfs 19 properlyspaced intheir upper surfacesand drivinginto said kerfscrimped slugs20,as is best showninFigsi '5 and 7. The slugs pro videver'tical ports andpermit the use of comparativelywide k'erfswhich do not clog as easily.as the very narrow slits usually employed; The crimped slugs will, ofcourse, obstruct the kerfs and sufliciently retard the escape of thegasto provide highly eliicient burnerflorifices, It will be noted that inthe tube 10 the "kerfs extend up to each side of the T 14, while in thetube 11 imperforate portions 11 are provided on each side of the T 15;vThis is done to equalize the distribution of the gas,as will beobvious.

A reducing T-member 21 is fastened on the bottom of the pipe'18. Fromthe reduced end of this member a small fuel pipe 22 eX- tendslongitudinally under thetube 11 and is 'connected'at its end to an elbow23, which latter is inclined upwardly and outwardly vand is connectedwith a retort burner tube 24 extendinglongitudinally in front of thepipe 18', H As is best shown in Figs. 2, '3 and 9, the burner tube 24 isprovided with kerfs 25 and slugs 26 like thetubes lO'and 11. A metaljacket27 is secured around the tube 24 and asbestos strips 28 are placedbetween the jacket and the tube contiguous to the ends of the kerfs' forpre-heating purposes. The jacket I other suitable pre-heating fluid.

is provided with longitudinal flanges 29 to form a trough'or pan sothat'the asbestos strips may be saturated with alcohol or any A gassupply tube 30' extends fromthe -member 21 in the opposite direction tothe tube 22 and is considerably larger than the latter. An inclinedelbow 31 connects the end of the tube 30 with a mixing box 32,

which may be made in the form of an en-- larged T having one end.screwed'into the elbow. The T is provided with a depending air-admittingstem 33 and has an opening in. its front side normally closed by aclean-out plug 34. 1 v

A bushing 35 is screwed into the forward end of the box 32 and the shank36 of a nozzle has a snug sliding fit in an aperture 37. in 'saidbushing so asto extend into the chamber of the box 32, as is best shownin 14. A small orifice '38 is provided in the protruding end of saidshank. The nozzle has an enlarged head 39, bearing againstthe outersideof the bushing for receiving one end" of a generator sleeve 40.

A strainer 41 confined by the sleeve extends into the bore of the shank.A reducing elbow 42 is screwedonto the opposite end'of the sleeve andreceives a nipple 43 which is fastened on the end of a tubular conductor44 through which kerosene or other fueljoil is supplied. A strainer 45is positioned in the elbow contiguous to the end of the sleeve 40.

A wire coil 46 surrounds a tube 47'within the sleeve 40. A small rod 48passingcentrally through the tube 47 is surrounded by a second wire coil49 within said'tube. The

fueloil which is delivered to the elbow 42 passes through the strainer45 and enters'f'the sleeve 40 and the tube 47. Thedirect passage of theoil through the sleeve and tube "is retarded by the coils 46 and'49 sothat; said oil is caused to take a circuitous path'and the heating ofthe parts will cause said oil to be vaporized, which vapor willdischarge through the screen 41 and be projected through the orifice'38into the chamber of the box 32.

Air admitted through the stem 33 and mixing with the vapor in the box 32will form a gas which will be drawn'down into the tube 30 and thenupward through the parts 21,18 and 17 and distributed to the burnertubes 10 and 11, as hereinbefore de scribed. A portion of the gas willalso pass through the tube 22 to the generator burner 24. Owing to thedifferences in temperature and also the condition of the air admittedthrough the stem 33, there will bemore or less condensation throughoutthe burner. The condensate will, of course, take the form of a liquidand unless some means for carrying oftthesame is provided, the burnerparts would in time fill to such a point asto interfere with theoperation of the burner. It will be notedthat the T -connect-ion21 is atthe I lowest point of the burner and all liquids f will drain to thisconnection. From the bottom of said connection, a small pipe 50 leadsdownwardl to a goose neck trap 51 open at one endufficient liquid ismaintained in the trap to provide a seal so thatthe gas can notescape. g

It is obvious that condensationliquids will drain to the connection 21and pass down throughth'e pipe 50 to the trap 51 which will overflow,thus carrying off said liquids. The

condensate liquids may be caught in a suitand 'recovered.- I

e In operating the burner, the asbestos strips able receptacleand thefuel 'oil filtered out 28 are saturated with alcohol which is ignitedand the'generator'sleeve and its internal parts I thereby p're-heated.Kerosene or other fuel oil is fed under pressure through the conliquidoil, upon passing through the coils 46 and49 and comingincontact withthe heated sleeve 40, tube 47. and rod 48, will be vaporized." Thisvapor will' be'ejected through the orifice 38int0 the chamber ofthemixing 130x32. Air admittedithroughthe stem 33 will be admixed with thevvapor and a com bustible gas thus formed. If the orifice 38 shouldbecome clogged the-plug 34 may be removed and said orifice' cleaned witha suit able wire. V

The gas from the mixingboxl'isconducted r .100 30 to theIT-member'21. Aportion of the downwardly by the elbow31 through the tube 35 ductor 44tothe elbow 42when the generator has been heate'dfltothe required point.The

gas is carried through the tube22 to the I generator burner 24 and themajorportion of the gasis dischargedintoi the pipe-:-18 and g conductedtothe T 15. The gasiis distributed frointhe 15 into the burner tube 11and by way ofthe pipe16v and T 14:,to the burner tube 10..Theimperforateportions 11' will cause an equal distribution of the gas.The

flame will be maintained abuts kerfs 19, the

gas being vdischa I I rgedthrough thecrimps of theslugs 20.

In Fig, 1.1 haveshown areas pos i- I I t ionedin-the bottom of a bakersovenwhich I V I the parts below the tubes 10 and 11. Q The oil isprovided with a sump-52 for containing conductor 44 is carriedthroughone side of the sump, while the stem 33. and the pipe'50 extend throughthe bottom I ofsaid sump. This illustration merely. shows one use of theburner and the invention is not to be limited (thereto.

pair of substantially tending longitudinally at one side -of the burnertubes and having a vaporizing element therein, asecondary gas burnerbeneath the generator andparallel with the burner 5 tubes, a r mixingchamber communicating with the discharge from the generator and havingan air intake, a gas conductor from sald chamber-extending parallel toand beneath one burner tube and rhavlng a connec- 0 tion therewith atsubstantially its midlength,

and a reduced conductor'exten'ded from said connection and communicatingwith the I secondary burner at th'eintake end of the generator tube.

1 2. An oil'burner as defined by claim 1;

and a condensation pipe depending from said connection and formed 1 withan upturned discharge to retain aliquid body and prevent I T escape ofVapor. v

" 2b Intestimony whereof I afiix my signature;

LOUIS n. nouns.

